"Don't pretend that by people saying they're comedians, they're hiding … they're not," he said. "They're just telling you that the language of satire is slightly different than the language of newscasters. Language in general has repercussions."

He added: "There are repercussions for what comedians say. When you’re doing it in a club, there are repercussions — ask Michael Richards, ask Tracy Morgan. If you do comedy on television, there are repercussions — ask me," Stewart said, cutting immediately to a Fox News clip asking if his comments about Herman Cain were racially motivated.

The repercussions aren't limited to Fox News critiques, he said. He said he receives letters — "many of them handwritten, some of them containing white powder."

"You know, when I got into comedy, I didn't think the white powder I'd be getting was anthrax," he said. "By the way, for those of you at home, don't snort anthrax."

After saying he is all for free speech, Stewart ended the segment with a message for Fox News: "Shut the fuck up about how victimized you and you alone are! Nobody cares!"